June 8, 2009
No, not one of Shakespeare's plays...
...but an Itailan play "Enrico IV" by Luigi Pirandello, written in 1921. From wiki:
"A talented actor and historian falls off his horse during a historical pageant while playing the role of Henry IV. When he comes to, he believes himself to be the Holy Roman Emperor Henry IV of Germany. For the next twenty years his nephew, Count de Nolli, funds an elaborate hoax in a remote villa, where actors play the roles of Henry's privy councilors and simulate the 11th century court.
"On request from his dying mother (Henry's sister) de Nolli brings a Doctor, referred to as the latest in a succession to try and cure Henry (whose real name, if it is not Henry, is never mentioned). All the action of the play occurs in this one day of the visit."